Patents hopper car claims covered drawing Pullman standard's ps-2cd 4427 covered hopper Hopper car patents covered
Patent US4362111 - Covered hopper car - Google Patents
Hopper car diagram
Patent us3664270
Patent us4362111Drawings from the society’s archives and publications – the santa fe Hopper coveredHopper car covered dizzy pullman wanderings wonderings.
Patents hopper car hatchDiagram of covered hopper car by the gouvernement du canada Railroad covered hopper car for transport of dry bulk loads3d train car.
Hopper publications covered
Dizzy's wanderings & wonderings: wondering about a r.r. icon. .
.
